Home / 206,931.45-310,233.15-113,437.20

Finding the Fourth Proportional to 206,931.45, 310,233.15 and 113,437.20

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Solution

The fourth proportional to 206,931.45, 310,233.15 and 113,437.20 is: 170,065.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,931.45 : 310,233.15 = 113,437.20 : x
  2. Step 2: Convert to fraction form
    206,931.45/310,233.15 = 113,437.20/x
  3. Step 3: Cross multiply
    206,931.45x = 310,233.15 × 113,437.20
  4. Step 4: Simplify right side
    206,931.45x = 35,191,979,883.18
  5. Step 5: Solve for x
    x = 35,191,979,883.18/206,931.45
  6. Step 6: Final answer
    x = 170,065.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.